Got my '66 520 going. A little starting fluid, and it ran like a top! Fired up instanly after sitting for six months or so. I need valve clearance figures though. My truck is a POST OCTOBER production truck. I don't know why, but because of this fact EVERYTHING is a major b**** to get the right parts/info/everything for. I plan on contacting the dealer tomorrow, and have them say the usual......"UH, we don't even have that in our computer/or on paper file." Thought I would start here first. I looked online and found nothing.